CA2093508A1 - Analytical device - Google Patents

Analytical device

Info

Publication number
CA2093508A1
CA2093508A1 CA002093508A CA2093508A CA2093508A1 CA 2093508 A1 CA2093508 A1 CA 2093508A1 CA 002093508 A CA002093508 A CA 002093508A CA 2093508 A CA2093508 A CA 2093508A CA 2093508 A1 CA2093508 A1 CA 2093508A1
Authority
CA
Canada
Prior art keywords
cuvettes
rotor
processing
cuvette
samples
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002093508A
Other languages
French (fr)
Inventor
Jurg Buhler
Andreas Greter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of CA2093508A1 publication Critical patent/CA2093508A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/025Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having a carousel or turntable for reaction cells or cuvettes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04Details of the conveyor system
    • G01N2035/0401Sample carriers, cuvettes or reaction vessels
    • G01N2035/0406Individual bottles or tubes
    • G01N2035/041Individual bottles or tubes lifting items out of a rack for access
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04Details of the conveyor system
    • G01N2035/046General conveyor features
    • G01N2035/0465Loading or unloading the conveyor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64Fluorescence; Phosphorescence
    • G01N21/6445Measuring fluorescence polarisation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1081Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane
    • G01N35/109Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane with two horizontal degrees of freedom
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00Chemistry: analytical and immunological testing
    • Y10T436/11Automated chemical analysis
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00Chemistry: analytical and immunological testing
    • Y10T436/11Automated chemical analysis
    • Y10T436/113332Automated chemical analysis with conveyance of sample along a test line in a container or rack
    • Y10T436/114165Automated chemical analysis with conveyance of sample along a test line in a container or rack with step of insertion or removal from test line

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

Abstract The analytical device comprises a conveyor for conveying cuvettes to one or more stations for processing samples for analysis in the cuvettes. The processing stations comprise means for removing individual cuvettes from the conveyor, transferring the cuvettes to a processing position and returning the cuvettes to the conveyor after processing.

Fig. 1.

Description

{~
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The invention relates to a device for chemical and s biochemical analysis, comprising a conveyor for conveying cuvettes and one or more stations for processing the samples for analysis in the cuvettes.

Automatic analytical devices usually operate on the 0 following principle: samples for analysis or parts of samples are placed in containers and then subjected to a series of processing steps such as adding (pipetting) reagents~ mixing, incubation etc~, and measurements of the reactions which have taken place are made a number of times durin~ processing and/or once at the end ls of processing. The usual procedure is as follows: the containers holding the samples for analysis are placed in a fixed sequence on a conveyor and travel through various processing stations, or in ~he case of "batch processing", as is usual in the case of "centrifugal analysers", all sample containers are placed on a 20 carrier (rotor) and subjected practically simultaneously to the processing steps and measurements. Analytical systems operating on these principles give good service in la~ge clinics and analytical centres where large numbers of samples have to be processed.

In view, however, of the variety of possible analyses today and the medical requirements, particularly in clinical chemistry, it has been found that Ithe automatic analysers collventionaliy used hitherto for throughput of large quanti~ies of samples are not sufficiently flexible to provide analytical profiles (full random 30 access) specifically adapted to individual patients or medical conditions, while still being able to handle a large number of samples from patients.

The aim of the invention therefore is to provide an 35 analytical system which meets these requirements in that a large number of analytical samples can be processed with very great flexibility with regard to the analytical profile obtained from the individual sample.

Ve / 12.03.93 2 ~ 0 ~ J

This is ach;eved according to the invention by providing means for removing individual cuvettes from the conveyor, for transferring the cuvettes to a position for processing and for 5 returning the cuvettes to the conveyor after processing.

An embodiment of the inventiorl will now be described with reference to the accompanying drawings, in which:

Fig. I is an axonometric overall view of an analytical device and Fig. 2 is a plan view of the device in the direction of arrow I
in Fig. 1.
As shown in Fig. 1, the device 1 comprises a closed substructure 10 having a top surface on which a number of functional devices are disposed. The substructure contains all the devices which are only indirectly connected with the actual 20 analytical processes, e.g. electricity supply, electronics, cuvette supply and disposal means, refrigerating devices etc.

On the top surface, there is a first region 18 in which all reagents are kept available for pipetting, a second region 13 for 25 disposing the containers from which the samples are pipetted into the measuring cuvettes, and a third region which is the actual analytical region.

Conveyor means 16, 17 each being apt to convey one or 30 preferably two pipetting needles of a pipet~ing device to desired pipetting positions are arranged for displacements above the first region 18 in order to enable pipetting of predetermined amounts of the reagents disposed in that region.

Conveyor means 12, 14 each being apt to convey one or preferably two pipetting needles of a pipetting device to desired pipetting positions are arranged for displacements above the second region 13 in order to enable pipetting of predetermined 3 ~ 3 amounts of the samples from the sample containers disposed in that region.

The second region 13 can include a rack lS for receiving ~-~
S components necessary for special assays, e.g. assays making use of a so called ion selective electrode.

A washing position 19, where washing of the pipetting needles is carried out, is positioned adjacent to each the first 0 region 18 and the second region 13 respectively.

The analytical region contains a cuvette transfer device 2 and a number of stations for processing the samples in the cuvettes. This analytical region is shown in plan view in Fig. 2. It lS comprises the components described hereinafter:

The cuvette conveying device 2 is a circular rotor~ which can be rotated by a drive (not shown) through exact angular steps in both directions of rotation. The measuring cuvettes are held on 20 the outer edge 3 of the rotor, i.e. they have a flange on their upper surface which rests on a flat annular surface at right angles to the rotor axis, they have a w~ll surface which simultaneously abuts the substantially cylindrical outer surface of the rotor, and also the cuvettes are held by spring tongues which are associated with 25 each cuvette position and project radially over the cuvettes, wbich for this purpose have a projec~ion (not shown) on their underside for engaging in a recess in the cuvette flange. The resilien~ holder holds the cuvet~es sufficiently firmly tv prevent them from falling out by themselves, even when the rotor rotates. On the other 30 hand the resilient holder enables the cuYettes to be easily wi~hdrawn or inserted manually or by a mechanical gripping mechanism.

A detailed description of the motor 2 and its operation is 3s given in the simultaneously filed European Patent Application No.
92.105902. Reference is made to this description herewith.
4 ~3~
The rotor conveys the cuvettes to a photometer 9 for making absorption measurements. The cuvettes travel through the ligh~ beam of the photometer.

s Processing stations are disposed in exactly defined positions relative to the rotor. The processing stations are equipped with means for removing cuvettes from the rotor and/or for inserting cuvettes on the rotor when the rotor is not moving. The functions of the processing stations will be described in detail hereinafter.
10 A detailed description of the processing stations for adding samples or reagents is given in the simultaneously published European Patent Application No. 92,105901. Reference is made to this description herewith.

One processing station 4 is for insertion of new cuvettes and removal of used cuvettes at the end of analysis. The cuvettes removed from the rotor are placed in a waste container.

One processing station 8 is for metering of reagents. One of 20 the cuvettes o~a the rotor is taken of~ ~nd moved to a processing position in the station. One or more reagents are pipetted into the cuve~te. Simultaneously, the reagents are mixed by suitably moving the cuvette, after which the cuve~te and reagents are returned to the rotor.
2s A processing station 6 is for preliminary dilution of the sample. An empty cuvette is taken off the rotor and brought to a processing position in the station. A preset amount of sample and dilution liquid is pipetted in to the cuvette. At the same time, the 30 dilute sample is mixed by suitably moving the cuvette, after which the cuvette is pu~ back on the rotor.

A processing station 5 is for metering of samples. One of the cuvettes on the rotor is taken off and brought into a processing 3s position in the station. A preset quantity of the dilute sample is pipetted into the cuvette. At the same time, the reagents are mixed by suitably moving the cuvette. The cuvette containing the mixture of samples and reagents is then returned to the rotor.

4~ 3 ~ ~ ~

A processing station 7 is for adding a starting reagent to start the reaction by the sample. A cuvette is taken off the rotor and brought to a processing position in the station. A preset s amount of starting reagent is pipetted into the cuvette. At the same time the mixture of samples ansl reagents is mixed by suitably moving the cuvctte The cuvette is then put baek on the rotor.

I O A processing station 11 is for fluorescence polarimetric (~P) measurement. A sample containing a mixture of samples and reagents is taken off the rotor and brought to a rneasuring chamber in the station. At the end of the measurement, the cuvette is returned to the rotor.
Using measurement of absorption as an example, a determination program proceeds as follows:

To malce the required determination, a processing station 4 20 places a cuvette on the rotor. Firstly, an air ~est measurement is made on the cuvette on the rotor.

Thirty seconds later, the processing station 8 takes the cuvette off the rotor and moves it into a pipetting position in the 25 processing station, where one or more reagents are pipe~ted into the cuvette. When there are a number of reagents, they are mixed during and after pipetting. The cuvette is then returned to the rotor.

Seventy two seconds later, the cuvette is taken off the rotor by the processing station 6 and brought to the pipetting position, where the sample and diluent are metered by the sample transfer means. At the same time and/or afterwards, the substances are mixed and, after the pre-dilute sample has been used, the cuvette 3S is put back Oll the rotor.

Six seconds later, the processing station 5 takes the cuvette from the rotor and moves it into the pipetting posit;on, where the 6 ~OL~3~3~8 sample is metered by the transfer means and then mixed and the cuvette is returned to the rotor. A To measurement is then made on the rotor.

s One hundred and sixty two seconds later, the processing station 7 ~akes the cuvette off the rotor and brings it to the pipettin~ position, where a measured amount of starting reagent is added and mixed in and the cuvette is returned to the rotor.

o Three hundred and twenty-four seconds later, the processing station 4 takes the cuvette off the rotor and dumps it.

While the cuvettes are on the rotor, an absorption measurement is made every six seconds.
In addition to this sequence, there are two treatment phases for fluorescence polarometric (FP) measurements.

When the cuvette is returned to the rotor after adding the ~o sample, it is removed 132 seconds later by the processing sta~ion 11 and an FP blank measurement (parallel and at right angles) is made .

Accordingly, 90 seconds after the cuvette and the measured 2s amount of starting reagent have been put back on the rotor, the cuvette is again removed by the processing station 11 and measured and then returned to the rotor.

During the pipetting time in the processing stations, the 30 rotor makes a complete revolution for the absorption measure-ment. The photometer irradiates the cuvettes with white light, which is then divided into twelve wavelengths. Any two values of these twelve wavelengths are stored for further processing. This resuits in a measuring point at two wavelengths for each cuvette 3s every six seconds.

Claims (3)

1. A device for chemical and biochemical analysis, comprising a conveyor for conveying cuvettes and one or more stations for processing the samples for analysis in the cuvettes, characterized by means for removing individual cuvettes from the conveyor, for transferring the cuvettes to a position for processing and for returning the cuvettes to the conveyor after processing.
2. A device according to claim 1, characterized in that the means are parts of a processing station.
3. A device according to claim 2, characterized in that the means comprises a change-over and positioning device, and a control device is provided for controlling the motions of the change-over and positioning device and for simultaneously controlling a mixing operation during processing.
CA002093508A 1992-04-06 1993-04-06 Analytical device Abandoned CA2093508A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92105903 1992-04-06
EP92105903.6 1992-04-06

Publications (1)

Publication Number Publication Date
CA2093508A1 true CA2093508A1 (en) 1993-10-07

Family

ID=8209512

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002093508A Abandoned CA2093508A1 (en) 1992-04-06 1993-04-06 Analytical device

Country Status (5)

Country Link
US (1) US5762872A (en)
EP (1) EP0564907B1 (en)
JP (1) JP3131068B2 (en)
CA (1) CA2093508A1 (en)
DE (1) DE59306558D1 (en)

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US6919044B1 (en) * 1999-06-17 2005-07-19 Beckman Coulter, Inc. Sample loading and handling interface to multiple chemistry analyzers
US8398656B2 (en) 2003-01-30 2013-03-19 Integrated Vascular Systems, Inc. Clip applier and methods of use
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EP1615037A1 (en) * 2004-07-06 2006-01-11 Boehringer Mannheim Gmbh An apparatus for liquid handling with multiple transfer tools
EP2333561A3 (en) 2005-03-10 2014-06-11 Gen-Probe Incorporated System for performing multi-formatted assays
US8313497B2 (en) 2005-07-01 2012-11-20 Abbott Laboratories Clip applier and methods of use
ITMI20061502A1 (en) * 2006-07-28 2008-01-29 Barilla Flli G & R Spa PROCEDURE AND EQUIPMENT FOR THE QUICK DETERMINATION OF DEOSSINIVALENOL IN A CEREAL-BASED MATRIX.
US7641855B2 (en) * 2006-08-25 2010-01-05 Siemens Healthcare Diagnostics Inc. System for automatically storing and reprocessing patient samples in an automatic clinical analyzer
US9486191B2 (en) 2009-01-09 2016-11-08 Abbott Vascular, Inc. Closure devices
JP5286120B2 (en) * 2009-03-18 2013-09-11 株式会社日立ハイテクノロジーズ Automatic analyzer
US9046507B2 (en) 2010-07-29 2015-06-02 Gen-Probe Incorporated Method, system and apparatus for incorporating capacitive proximity sensing in an automated fluid transfer procedure
AU2012222178B2 (en) 2011-02-24 2014-12-18 Gen-Probe Incorporated Systems and methods for distinguishing optical signals of different modulation frequencies in an optical signal detector
US8556932B2 (en) 2011-05-19 2013-10-15 Abbott Cardiovascular Systems, Inc. Collapsible plug for tissue closure
US9364209B2 (en) 2012-12-21 2016-06-14 Abbott Cardiovascular Systems, Inc. Articulating suturing device
EP4109106A1 (en) 2013-03-15 2022-12-28 Abbott Laboratories Automated diagnostic analyzers having vertically arranged carousels and related methods
US10001497B2 (en) 2013-03-15 2018-06-19 Abbott Laboratories Diagnostic analyzers with pretreatment carousels and related methods
EP2972404B1 (en) 2013-03-15 2021-11-24 Abbott Laboratories Automated diagnostic analyzers having rear accessible track systems and related methods
FR3048510B1 (en) 2016-03-01 2020-01-31 Arteion AUTOMATIC ANALYSIS SYSTEM FOR IN VITRO DIAGNOSIS

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Also Published As

Publication number Publication date
EP0564907A1 (en) 1993-10-13
EP0564907B1 (en) 1997-05-28
US5762872A (en) 1998-06-09
DE59306558D1 (en) 1997-07-03
JPH0618533A (en) 1994-01-25
JP3131068B2 (en) 2001-01-31

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued